Users Manual Part 5
Clinical User’s Guide
IBA | 39-1 |
Volume 1 - Treatment Session
Chapter 39
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Resuming after a Partial Irradiation
Note: Screen representations throughout this chapter and throughout this part may
show ‘Control Mode: EMR-Centric’ or ‘Control Mode: DEV-Centric’ at the bottom.
When working in Standalone mode, you will notice that the Control Mode indication
reads ‘Stand-Alone’.
WARNING When a partial irradiation occurs (treatment session ended by the user
or by the system, in which the intended number of MU for a beam has
not been completely delivered), the Radiation Therapist shall manually
record the value reported by the hardware MU counter (situated on the
DCEU front panel), and this value (called MUdceu) shall be used as
reference for the activities that follow to resume the irradiation.
At each step, check that the total MU in the different records matches
MUdceu within the foreseen precision (+/- 0.5 % or +/- 0.5 MU).
After the partial irradiation, check that the total MU in the Dicom record
sent to the OIS matches the MU from the hardware MU counter. Do this
in all partial irradiation cases, be the Dicom record produced by the PTS
directly after the end of the irradiation, after an online recovery
procedure or after an offline recovery procedure
Use of the MU values from the hardware counter to generate a
treatment record with simulated dose distribution data must be a last
resort option, used only in cases when recording via the recovery of
irradiation logs is impossible (as made clear via the corresponding
system messages in those scenarios).